Which of the following numbers is not a rational number?
A. -3
B. 2.7
C. 14
D. 15

Write a polynomial that fits the description: a third-degree polynomial with leading coefficient -4

If i have one apple and give you the apple, how many apples do i have?

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.